Design of cloaked Yagi-Uda antennas

Monti, Alessio; Soric, Jason; Alù, Andrea; Toscano, Alessandro; Bilotti, Filiberto

doi:10.1051/epjam/2016012

Cited by 31 publications

(13 citation statements)

References 28 publications

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“…To reduce the overall scattering of a linear antenna, we rely on the concept of electromagnetic cloaking [30]- [34], which has been widely investigated in the context of lowsignature antennas [35]- [38] and antenna co-siting [39]- [49]. The antenna system considered in this work is shown in Fig.…”

Section: B Power-dependent Antennasmentioning

confidence: 99%

Intelligence Enabled by 2D Metastructures in Antennas and Wireless Propagation Systems

Barbuto

Hamzavi-Zarghani

Longhi

et al. 2022

IEEE Open J. Antennas Propag.

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The development of the next generation of wireless systems is bringing renewed attention to the physical layer of the communication link. Indeed, the new low-latency requirements cannot be satisfied relying only upon the extreme virtualization of the hardware functions. Moreover, conventional wireless systems with fixed characteristics and functionalities are not appropriate to modern electromagnetic environments, which undergo continuous and fast variations. Embedded smartness is a required feature for widening the range of the possible electromagnetic responses to support advanced and novel functionalities. In this paper, we show how the combination of 2D metastructures with conventional antennas and reflectors enables an unprecedented electromagnetic behaviour, which is at the basis of new properties, capabilities, and applications. In particular, we propose an emerging design approach based on the shifting of the reconfigurability, adaptivity, sensing, and power management of a wireless system at the physical level, thanks to the use of properly designed 2D metastructures to be coupled with standard antennas and reflectors.

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Section: B Power-dependent Antennasmentioning

confidence: 99%

Intelligence Enabled by 2D Metastructures in Antennas and Wireless Propagation Systems

Barbuto

Hamzavi-Zarghani

Longhi

et al. 2022

IEEE Open J. Antennas Propag.

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“…Finally, it is worth mentioning that mantle-cloaking solutions for blockage and mutual-coupling reduction have been recently moved to array scenarios. For instance, in [105], a novel compact and high-directivity dual-band radiator with opposite main lobe directions at its two resonance frequencies has been proposed. A first smaller Yagi-Uda antenna, operating at high-frequency, was placed between the driven element of a second larger Yagi-Uda, operating at lower frequencies, intentionally oriented to radiate in the opposite direction compared to the previous one.…”

Section: Cloaking For Blockage and Mutual-coupling Reductionmentioning

confidence: 99%

Progress and perspective on advanced cloaking metasurfaces: from invisibility to intelligent antennas

et al. 2021

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Among the different cloaking applications proposed in the literature, the antenna framework has emerged as one of the most fruitful and mature field. In particular, mantle cloaking approach has proven to be a powerful tool for enabling unprecedented possibilities in antenna design. Here, we provide a review of the most significant works in the field of electromagnetic invisibility for antenna applications, demonstrating the versatility of cloaking metasurfaces in antenna scenarios. We also discuss our recent results and investigations on the design of advanced cloaking metasurfaces equipped with electronic components and circuits and able enriching the antenna intelligence.

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“…Mantle cloak has also been used to achieve transparency in printed circuit technology wherein mutual coupling between two monopoles was reduced using elliptically shaped mantle cloaks [10][11][12][13][14]. In addition to these works, in [15], cloaking of Yagi-Uda antenna has been demonstrated using scattering cancellation technique.…”

Section: Introductionmentioning

confidence: 99%

Scattering and Coupling Reduction of Dipole Antenna Using Gradient Index Metamaterial Based Cloak

Bisht¹,

Srivastava²

2020

PIER M

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A gradient index metamaterial (GIM) based conformal cloak is utilized to reduce the overall scattering of a dipole antenna and its blockage effect when being placed in close proximity of a horn antenna. The reduction in scattering is attributed to wave conversion properties of GIM cover, by virtue of which the propagating waves get converted to surface waves and vice versa, thus reducing the scattering signature of the dipole. The GIM cover also has the advantage of larger bandwidth than single metasurface based cloaks (mantle cloak). The proposed GIM based cloak proves to be effective in reducing the mutual interference between dipole and horn antenna without disrupting the performance of individual antennas in their respective frequency band of interest. The Ansys HFSS simulation results are presented to demonstrate the effectiveness of GIM based cover to reduce mutual blockage effect between a low band dipole and an S-band horn antenna.

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Design of cloaked Yagi-Uda antennas

Cited by 31 publications

References 28 publications

Intelligence Enabled by 2D Metastructures in Antennas and Wireless Propagation Systems

Intelligence Enabled by 2D Metastructures in Antennas and Wireless Propagation Systems

Progress and perspective on advanced cloaking metasurfaces: from invisibility to intelligent antennas

Scattering and Coupling Reduction of Dipole Antenna Using Gradient Index Metamaterial Based Cloak

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